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About this project

Why Cardiglow?

Your heart rate is an extremely valuable indicator during physical exercise, but reading it off a watch reduces focus or is only possible in between intervals or sets.

Wearing Cardiglow feels like having a sixth sense for your heart. It makes you aware of your heart rate and every single one of your heartbeats. Gain more control over your body and work out more efficiently!

Long exposure photography of two runners

What is Cardiglow?

The Cardiglow chest strap provides a continuous, instantaneous and intuitive biofeedback by translating your heart rate into colors, which are displayed with high power LEDs.

The color transitionssmoothlywith your heart rate: For example with an increasing heart rate from blue to red over all the colors in between and back to blue again when you recover.

Recovery after a set

Who uses Cardiglow?

Cardiglow enhances workouts of many different kinds of athletes. Wear Cardiglow when you're running, weightlifting, practicing calisthenics or performing other physical activity. Feel your surroundings pulse with your heart and see the bright LEDs shine through your shirt when you're working out in front of a mirror.

Cardiglow connects fitnessclasses: Get individual workout intensity feedback of all participants at a glance, coach them with more precision and make them motivate each other.

High heart rate after intense interval

Workout Tracking

The device is compatible with the Bluetooth Heart Rate Service, so you can keep track of your improvements with your favorite workout tracker on your smartphone or smartwatch.

Cardiglow app

Color Precision

Configure the color pattern for a high resolution in your target heart rate zone and save profiles for all your workouts and activities.

High intensity aerobic running profile

Different orders of colors generate alternative color gradients.

Weightlifting profile with alternative color gradient

Autonomous Coaching

A vibration motor keeps your sets and intervals on time! Set it up to notify you at certain heart rates, after a pause or in fixed intervals. It operates autonomously after you set it up with your smartphone.

Autonomous coaching system

Heartbeat Feedback

Cardiglow operates for six hours with pulses of maximum intensity. Adjust the LEDs' maximum brightness to save energy and its minimum brightness to change the amount of heartbeat feedback. Chose a strong heartbeat feedback when you're on your own and select a constant brightness for classes. When you're running in the dark, set the minimum brightness to 30% so you're more visible in the city and can see where to place your steps in the forest, but still feel every single one of your heartbeats!

Configuring the heartbeat feedback

Bluetooth Controlled Lighting

Use Cardiglow as a Bluetooth RGB light between your workouts. Conveniently switch your nightlight on and off with your Smartphone and keep Cardiglow fully charged at the same time!

Charging Cardiglow

Ready for Production

The astonishing effect attracts lots of curious athletes in the gym and on the track now that the patents are pending and we're finally allowed to wear our prototypes outside of our lab.

The pre-production boards weigh 23.1g. The chest strap weighs 32.2g. The case adds another 8g. This means Cardiglow is as light as other heart rate chest straps!

The final version is twice as bright as the prototypes we used for shooting our photos and videos! Oh, and by the way: Even though it's hard to capture Cardiglow's light effect on camera, all the photos and videos in this campaign have only been cropped and were not edited in any way!

Final design (without case) - Uploaded 10th of December

Production Schedule

Our circuit board manufacturer needs seven to eight weeks.

Programming, testing and finishing the devices takes two to three weeks.

FAQ

We have configuration apps ready for iOS and Android with BLE. The heart rate service uses the standard protocol and is compatible with all Bluetooth 4.0 HRM/HRS heart rate devices and apps (e.g. Runtastic, Adidas MiCoach, RunKeeper, Endomondo, Runmeter).